package com.qf.day13.Homework;
import java.util.HashMap;
import java.util.Scanner;


import static java.lang.Character.charCount;
    public class hw01  {
        public static void main(String[] args) {
            Scanner scanner=new Scanner(System.in);
            System.out.println("请输入一个字符串");
            String str=scanner.nextLine();
            HashMap<Character,Integer> hashMap=charCount(str);
            System.out.println(hashMap);
        }
        private static HashMap<Character, Integer> charCount(String str) {
            HashMap<Character,Integer> hashMap=new HashMap<>();
            char[] array = str.toCharArray();

            for (int i = 0; i < array.length; i++) {
                System.out.println(array[i]);
                if(hashMap.containsKey(array[i])){
                    //获取该键的值
                    int count=hashMap.get(array[i]);
                    hashMap.put(array[i],count+1);
                }else{
                    hashMap.put(array[i],1);
                }
            }
            return hashMap;
        }
    }
